| From: | Daniel Farina <daniel(at)heroku(dot)com> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | Peter Eisentraut <peter_e(at)gmx(dot)net>, Sandro Santilli <strk(at)keybit(dot)net>, Christoph Berg <cb(at)df7cb(dot)de>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Runtime SHAREDIR for testing CREATE EXTENSION |
| Date: | 2012-02-25 02:43:07 |
| Message-ID: | CAAZKuFbYRwPHJee9cdV88E=wdBsizKF7Pu=0mZ4LRYVzseVktg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Feb 24, 2012 at 6:31 PM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> Really? Here's what I just got on a severely under-resourced SL6 VM:
>
> 1.5s doesn't seem terribly slow.
You are right. Come to think of it, I do seem to recall that initdb
got some speed improvements; these were in 8.3 days, I think.
Here are my numbers for comparison, in some various forms:
env time /usr/lib/postgresql/9.1/bin/initdb /tmp/foo
0.94user 0.28system 0:01.87elapsed 64%CPU (0avgtext+0avgdata 79920maxresident)k
14288inputs+85144outputs (36major+66622minor)pagefaults 0swaps
env time eatmydata /usr/lib/postgresql/9.1/bin/initdb /tmp/foo
0.90user 0.27system 0:01.26elapsed 92%CPU (0avgtext+0avgdata 79984maxresident)k
856inputs+85144outputs (0major+67202minor)pagefaults 0swaps
env time /usr/lib/postgresql/9.1/bin/initdb /dev/shm/blah
0.90user 0.19system 0:01.15elapsed 95%CPU (0avgtext+0avgdata 79984maxresident)k
0inputs+0outputs (0major+67192minor)pagefaults 0swaps
Retracted.
--
fdr
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